new-98 deville.. few questions and concerns

finallyyyy got myself a caddyyy and i think i got a pretty goood deall.. well lemme giv a lil description.. 98 black deville.. new black paint job.. clean title.. all black leather interior which id say is 9/10 cuz its really cleann! 144K miles.. tires are good shape.. i got it for $2600 which i think was pretty cheap compared to others ive seen on sale.. today i spend about 120 dollars for a tranny fluid exchange, oil change, fuel injector cleaning and a engine cleaning b4 i did the oil change.

well obviously der wuld be sum problems since i got it for so cheap.. the seats dnt move back or forth or anything! i checked all the fuses and they seem good.. is there a DIY list of everything i can check? also ijus checked the fuses under the hood and i dnt have the sticker that tells me wat fuse is wat.. didnt check the bigger relay fuses tho. any help?

other than that while i was gettin fuel injector cleaned today we heard the engine kinda whistle up and it sprayed out coolent out of the resovouir over flow nozzle.. apprentty car had over heated.. noticed coolent was a little low and maybe a bad thermostat.. is that wat u wuld think it is? or culd it be sumthn more serious?

also i read another post of sumone sayin a noise comin from the engine while its at a stop.. i noticed wen my car is started and in park i hear this weird noise coming.. kinda like the engine is bogging.. wen im drivin i cant hear the noise.. only wen its in park.. sometimes it even sounds like it has sumthn to do wit the exhaust cuz i hear a noise from the back.. any ideas?

Wow. Your thoughts are all over the place. What exactly are you trying to ask again?